| 摘要 |
An integral, semi-integral, or modular apparatus for inducing pressure drop between upstream and downstream of the apparatus for exhaustion of flue gas as through the exhaust piping of a cyclone separator, smoke stack of boilers, or other exhaust piping is presented. The invented 1st apparatus comprises 1st plenum confinement means having a 1st and 2nd CO(circular opening) on upper and lower side thereof respectively, a 1st circular OC(outer cylinder) inserted downward through the 1st CO and secured, and a 1st circular IC (inner cylinder) inserted upward through the 2nd CO and secured, whereby pressurized gas retained in the 1st plenum confinement means is injected to make a 1st annular jet through a 1st annular passage defined by outer surface of the 1st IC and inner surface of the 1st OC so that the flue gas flow inside of the 1st IC is easily sucked up toward downstream of the 1st apparatus due to the pressure drop caused by high kinetic energy of the vertical velocity component of the 1st annular jet.
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